Editor: the toolkit is a rail tab on desktop, and the rail is wider

The handoff drew the toolkit as a 216px card left of the plan. That width
was better spent on the plan and the rail, so the toolkit is now the rail's
first tab — Toolkit / Plot / Journal / History / Assistant — rendered
`embedded` (no card chrome, no heading; the tab is the heading), the grid
is two columns, and the rail grows from 336 to 400px.

Focusing a bed (double-click) switches the rail to Toolkit, because that is
where the plant palette now lives; a single click still selects into Plot.
The phone chrome is untouched: it never used the card.

Co-Authored-By: Claude Fable 5 <[email protected]>

web/src/pages/GardenEditorPage.tsx

@@ -116,6 +116,7 @@ const MODES: { id: PhoneMode; label: string; icon: IconName }[] = [
 ]
 
 const TABS: { id: RailTab; label: string }[] = [
+  { id: 'toolkit', label: 'Toolkit' },
   { id: 'plot', label: 'Plot' },
   { id: 'journal', label: 'Journal' },
   { id: 'history', label: 'History' },
@@ -124,9 +125,11 @@ const TABS: { id: RailTab; label: string }[] = [
 
 /**
  * The editor: one canvas, two chromes. Above 760px of container width it is the
- * three-card workspace — toolkit, plan, rail; below, a phone layout with the
- * canvas as the whole screen, a peek panel that docks between canvas and mode
- * bar, and a tool strip for the current mode. Same state, same components.
+ * two-card workspace — the plan, and a rail whose first tab is the toolkit
+ * (the handoff drew it as a third card on the left; folding it into the rail
+ * gave the plan and the rail its width); below, a phone layout with the canvas
+ * as the whole screen, a peek panel that docks between canvas and mode bar,
+ * and a tool strip for the current mode. Same state, same components.
  */
 function Editor({
   gid,
@@ -580,27 +583,29 @@ function Editor({
   // ── desktop ─────────────────────────────────────────────────────────────
   const tabs = TABS.filter((t) => t.id !== 'chat' || hasAssistant)
   const plot = inspector ?? <GardenSummary objects={objects} plantings={plantings} plantsById={plantsById} canEdit={canEdit} />
+  const toolkit = (
+    <Toolkit
+      embedded
+      unit={unit}
+      plants={plants}
+      plantings={plantings}
+      lotsByPlant={lotsByPlantId}
+      canEdit={canEdit}
+      focused={focused}
+      focusedPlopCount={focusedPlops.length}
+      canScan={canScan}
+      filling={fillObject.isPending}
+      onBack={exitFocus}
+      onFill={(layout) => focused && armedPlant && fillObject.mutate({ objectId: focused.id, plantId: armedPlant.id, layout })}
+      onClear={() => setClearing(true)}
+      onScan={() => setScanning(true)}
+    />
+  )
 
   return (
     <div ref={rootRef} className="flex h-dvh flex-col bg-bg">
       <Nav active="gardens" />
-      <div className="grid min-h-0 flex-1 gap-3.5 p-3.5 pt-0 [grid-template-columns:216px_minmax(0,1fr)_336px]">
-        <Toolkit
-          unit={unit}
-          plants={plants}
-          plantings={plantings}
-          lotsByPlant={lotsByPlantId}
-          canEdit={canEdit}
-          focused={focused}
-          focusedPlopCount={focusedPlops.length}
-          canScan={canScan}
-          filling={fillObject.isPending}
-          onBack={exitFocus}
-          onFill={(layout) => focused && armedPlant && fillObject.mutate({ objectId: focused.id, plantId: armedPlant.id, layout })}
-          onClear={() => setClearing(true)}
-          onScan={() => setScanning(true)}
-        />
-
+      <div className="grid min-h-0 flex-1 gap-3.5 p-3.5 pt-0 [grid-template-columns:minmax(0,1fr)_400px]">
         <div className="panel flex min-h-0 flex-col overflow-hidden">
           <div className="flex flex-wrap items-center gap-3 border-b border-divider px-[18px] py-3">
             <h4 className="text-[19px]">{g.name}</h4>
@@ -645,6 +650,7 @@ function Editor({
             ))}
           </div>
           <div className="flex min-h-0 flex-1 flex-col gap-3 overflow-y-auto p-4">
+            {tab === 'toolkit' && toolkit}
             {tab === 'plot' && plot}
             {tab === 'journal' && journal}
             {tab === 'history' && <HistoryTab canEdit={canEdit} undoLast={undoLast} />}